Safety Dynamics, Inc. has trained and tested SENTRI to successfully recognize gunshot eventsin the following calibers with a typical rate of recognition at 100% even in noisy conditions: .22,.25, .32, .38, .40, .45, 9mm Caliber Pistols; .22, .223, .308 Caliber Rifles; .410, .12 gaugeshotguns; AK-74 (5.45 x 39); SKS (7.62 x 39); Mosin Nagant (7.62 x 54R); RPK (7.62 x 54R);SVD (7.62 x 54R); Tokerev (7.62 x 25 mm); and Makarov (9 x18 mm) Attack Rifles.

The presence of gunshot recognition systems and real-time video surveillance increase thelevel of situational awareness for urban environments,enabling a higher quality and faster responsefrom security forces or law enforcement.Cameras equipped with SENTRI Acoustic Recognitionprovide intelligence for Police Officers prior to theirarrival at priority calls for service, expand the abilityfor deputies to interrupt crimes in progress, containfleeing suspects, and other public safety needs.

Officer safety and risk management is improved,and criminal cases are strengthened with videoevidence. Public knowledge of advanced surveillancecapabilities serves as a crime deterrent.